From G-SQUAD, G-SHOCK's sports line, the GBD-100 incorporates a design inspired by training in the night scene. ;Shock-resistant structure & 20 atmospheric-pressure waterproofingEquipped with a shock-resistant structure that is resistant to shock and vibration, and waterproofed to 20 atmospheres, the watch can be used in a variety of locations and under a variety of conditions. ;Mobile Link function] Functions can be linked with compatible cell phones via Bluetooth communication. ;Training functionAcceleration sensor calculates and displays distance, speed, pace, etc., automatic/manual lap function, auto pause function, arrival notification alert setting function (time, calorie consumption) ON/OFF switch function, training display customization function (measurement time, distance, pace, lap time, lap distance, lap pace, average pace, speed, average speed, calorie consumption), etc.) suitable for training;Training log data/Life log data/User profile setting function/Vibration function/World time/Stopwatch/Timer/Alarm/Power saving function/Automatic calendar/12/24-hour display system switching/Flight mode/Operation sound ON/OFF switching function ON/OFF switch function for operation sound/Vibration ON/OFF switch function for operation vibration/LED backlight Please note that some of the models are made exclusively for Japanese market, hence the specifications and interface language is all in Japanese and cannot be changed to a different language. If there is no stock, it may be canceled after notification. ## Voltage For electronic equipment, it is recommended to use a transformer just in case. This is because electronic equipment for Japan is designed to be used at 100V.